Janda from Bohemia Austria Hungry mid 1800's

Janda from Bohemia Austria Hungry mid 1800's

My great great grandfather was John Janda who immigrated from the above mentioned area in late 1860's. He died in Philadelphia in the early 1920's. I'm trying to locate a region or town in this European area that he may have immigrated from. So far, no luck with Immigration Database info into the US, but did find a Joseph Janda who arrived into Baltimore in about 1868. John's oldest son Joseph who was born in about 1866 arrived in the US at about the age of 2 years old in 1868. John was married to Mary. Family info indicates her maiden name was Crotcha...but I do not think this is accurate. All Catholic baptismal information around her multiple children spelled her maiden name differently; I would venture to say it sounded like "Crotcha" but could have been Krachner or any close variation.